NAME
    SetTaskPri -- get and set the priority of a task

SYNOPSIS
    oldPriority = SetTaskPri(task, priority)
    D0-0:8                   A1    D0-0:8

    BYTE SetTaskPri(struct task *,long);

FUNCTION
    This function changes the priority of a task regardless of its
    state.  The old priority of the task is returned.  A reschedule is
    performed, and a context switch may result.

    To change the priority of the currently running task, pass the
    result of FindTask(0); as the task pointer.

INPUTS
    task - task to be affected
    priority - the new priority for the task

RESULT
    oldPriority - the tasks previous priority